The PVRTexture class is responsible for loading .pvr files generated by texturetool.

GLTextureAtlasViewController.h

GLTextureAtlasViewController.m

The GLTextureAtlasViewController class is a GLKViewController subclass that renders OpenGL scene. It demonstrates how to bind a texture atlas once, and draw multiple objects with different textures using one draw call.

GLTextureAtlasAppDelegate.h

GLTextureAtlasAppDelegate.m

The GLTextureAtlasAppDelegate class is the app delegate that ties everything together.

butterfly_2.pvr

butterfly_4.pvr

These are the pvr files generated from the butterfly.png image by the "Run Script" build phase.